unable to create any directory that uses numbers as the directory name

[madan.cpanelnet]

Version-Release number of selected component (if applicable):
==================================================================
root@server [~]# cat /etc/redhat-release

Red Hat Enterprise Linux ES release 4 (Nahant Update 5)

root@server [~]# uname -a
Linux server.integrityserver.net 2.6.9-55.ELsmp #1 SMP Fri Apr 20 17:03:35 EDT

2007 i686 i686 i386 GNU/Linux
root@server [~]#


How reproducible:
======================

root@server [~]# mkdir 1
mkdir: cannot create directory `1': No such file or directory
root@server
[~]# mkdir 12
mkdir: cannot create directory `12': No such file or directory
root@server [~]# mkdir 1a2
root@server [~]#



Actual results:
======================
mkdir: cannot create directory `1': No such file or directory



Expected results:
======================
should be able to create a directory

Additional Info:
==================
root@server [~]# ll $(which mkdir)
-rwxr-xr-x 1 root root 25060 Sep 19 15:46 /bin/mkdir*

root@server [~]# rpm -qf $(which mkdir)
coreutils-5.2.1-31.6
root@server [~]#
root@server [~]# mount -a
root@server [~]#
root@server [~]#alias | grep mk
root@server [~]#


FSType = ext3




Please advise.


Thanks

[kran]

Some people say that a Kernel reload will fix it, others that the server has been compromised


Any help? centos 5.x

[dragon2611]

kernels been compromised by the looks of it.

anyone know how though?

[kran]

kernels been compromised by the looks of it.

anyone know how though?

I had to do an OS RELOAD.

Datacenter knows about this problem, but has no Idea of how machines are getting rooted

If any one knows please let us know